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Mercedes Benz Engine Removal procedure?

Follow the details and diagram for complete understanding of engine replace procedure.

Engine
REMOVAL & INSTALLATION

NOTE
Disconnecting the negative battery cable on some vehicles may interfere with the functions of the on board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.

NOTE
Disconnecting the negative battery cable on some vehicles may interfere with the functions of the on board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.

Removal & Installation

Before servicing the vehicle, refer to the Precautions section.
Verify that the rear engine lifting eyes are correct. The left lifting eye is marked with a star and code number 04, and the right lifting eye is marked with a star and code number 02.
Remove or disconnect the following:

Place a guard plate behind the radiator/condenser to protect it from damage during removal and installation.

Air cleaner housing
Resonance pipe and body
Coolant hoses from the water pump and thermostat housing
Radiator
Coolant expansion tank
Transmission dipstick tube from the cylinder head cover
Brake booster vacuum hose from the rear of the intake manifold

Drain the power steering fluid from the pump.

Hoses from the power steering pump, then plug the openings
Vacuum hose at the purge control valve

Relieve the fuel system pressure.

Fuel pipe
Heater hose from the rear of the cylinder head
Engine wiring harness

Lock the automatic belt tensioner by rotating the tensioner counterclockwise until a 5mm drift or pin fits through the tensioner.

Serpentine belt
Air conditioning compressor and position it aside, leaving the hoses attached
Left inner fender liner
Exhaust system from the manifolds
Cable for the park lock interlock

Starter and tighten bolts to 31 ft. lbs. (42 Nm).
Cable for the park lock interlock
Exhaust system to the manifolds and tighten the mounting nuts to 15 ft. lbs. (20 Nm)
Air conditioning compressor
Serpentine belt and remove the locking pin
Engine wiring harness
Coolant hoses to the water pump, cylinder head and thermostat housing
Fuel pipe
Vacuum hose to the purge control valve
Power steering hoses to the pump and fill the reservoir
Brake booster vacuum hose to the intake manifold
Transmission dipstick tube to the cylinder head cover
Coolant expansion tank
Resonance pipe and body, then the air cleaner housing

Remove the radiator/condenser guard plate.

Fan shroud and fan
Engine undercover

Fill the engine with coolant and oil.
Connect the negative battery cable.
Read fault memory, encode the radio and normalize the power windows.

Before servicing the vehicle, refer to the precautions in the beginning of this section.
Verify that the rear engine lifting eyes are correct. The left lifting eye is marked with a star and code number 04, and the right lifting eye is marked with a star and code number 02.
Remove or disconnect the following:
NOTE
The fan clutch is equipped with right-hand thread.

Place a guard plate behind the radiator/condenser to protect it from damage during removal and installation.

Air cleaner housing
Resonance pipe and body
Coolant hoses from the water pump and thermostat housing
Coolant expansion tank
Transmission dipstick tube from the cylinder head cover
Brake booster vacuum hose from the rear of the intake manifold

Drain the power steering fluid from the pump.

Hoses from the power steering pump, then plug the openings
Vacuum hose at the purge control valve

Relieve the fuel system pressure.

Fuel pipe
Heater hose from the rear of the cylinder head
Engine wiring harness

Lock the automatic belt tensioner by rotating the tensioner counterclockwise until a 5mm drift or pin fits through the tensioner.

Serpentine belt
Air conditioning compressor and position it aside, leaving the hoses attached
Exhaust system from the manifolds
Cable for the park lock interlock

Cable for the park lock interlock
Exhaust system to the manifolds and tighten the mounting nuts to 15 ft. lbs. (20 Nm)
Air conditioning compressor
Serpentine belt and remove the locking pin
Engine wiring harness
Coolant hoses to the water pump, cylinder head and thermostat housing
Fuel pipe
Vacuum hose to the purge control valve
Power steering hoses to the pump and fill the reservoir
Brake booster vacuum hose to the intake manifold
Transmission dipstick tube to the cylinder head cover
Coolant expansion tank
Resonance pipe and body, then the air cleaner housing

Remove the radiator/condenser guard plate.

Fan shroud and fan
Engine undercover

Fill the engine with coolant and oil.
Connect the negative battery cable.
Read fault memory, encode the radio and normalize the power windows.

Exploded view of the engine mounting-M112 engines

Exploded view of the engine mounting-M113 engines

Before servicing the vehicle, refer to the Precautions section.
Verify that the rear engine lifting eyes are correct. The left lifting eye is marked with a star and code number 04, and the right lifting eye is marked with a star and code number 02.
Remove or disconnect the following:
NOTE
The fan clutch is equipped with right-hand thread.

Place a guard plate behind the radiator/condenser to protect it from damage during removal and installation.

Air cleaner housing
Resonance pipe and body
Coolant hoses from the water pump and thermostat housing
Radiator
Coolant expansion tank
Transmission dipstick tube from the cylinder head cover
Brake booster vacuum hose from the rear of the intake manifold

Drain the power steering fluid from the pump.

Hoses from the power steering pump, then plug the openings
Vacuum hose at the purge control valve

Relieve the fuel system pressure.

Fuel pipe
Heater hose from the rear of the cylinder head
Engine wiring harness

Lock the automatic belt tensioner by rotating the tensioner counterclockwise until a 5mm drift or pin fits through the tensioner.

Serpentine belt
Air conditioning compressor and position it aside, leaving the hoses attached
Left inner fender liner
Exhaust system from the manifolds
Cable for the park lock interlock

Starter and tighten bolts to 31 ft. lbs. (42 Nm).
Cable for the park lock interlock
Exhaust system to the manifolds and tighten the mounting nuts to 15 ft. lbs. (20 Nm)
Air conditioning compressor
Serpentine belt and remove the locking pin
Engine wiring harness
Coolant hoses to the water pump, cylinder head and thermostat housing
Fuel pipe
Vacuum hose to the purge control valve
Power steering hoses to the pump and fill the reservoir
Brake booster vacuum hose to the intake manifold
Transmission dipstick tube to the cylinder head cover
Coolant expansion tank
Resonance pipe and body, then the air cleaner housing

Remove the radiator/condenser guard plate.

Fan shroud and fan
Engine undercover

Fill the engine with coolant and oil.
Connect the negative battery cable.
Read fault memory, encode the radio and normalize the power windows.